Error message at times

[Jerry Geis <jerry.geis@xxxxxxxxx>]

I see this message once in a while:
Buffer I/O error on dev dm-1, logical block 8388592, async page read

I am using two crucial  SSD as RAID-1 on CentOS 7.4

What should I do? can I mark that block as not usable. ?

Thanks,

Jerry
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